This is a copy of Thor #404 published by Marvel Comics in 1989.
Cover pencils by Ron Frenz, inks by Joe Sinnott. "Something is Killing the Great Gods of Asgard," script by Ron Frenz (plot) and Tom DeFalco (plot and script), pencils by Ron Frenz (layouts); Thor has returned to Asgard to face the judgment of Odin; Later, Thor and the Warriors Three hear screams and discover dead Asgardians with their life force completely drained. 36 pgs.